ruRegExp property
RegExp for the Russian language (PASSED)
Language has code => LanguageCode.ru
r'\u0400-\u04FF\u0500-\u052F\s
' || r'/^(?=.*\u0400-\u04FF
)a-zA-Z\u0400-\u04FF
+$/u',
Implementation
static final RegExp ruRegExp = RegExp(
r'^(?=.*[а-яА-ЯёЁ])[\wа-яА-ЯёЁ\s«»:?.,!-]+$',
caseSensitive: false,
unicode: true,
);